astronomyblog:Arp 273 is a pair of interacting galaxies, lying 300 million light years away in the
astronomyblog: Arp 273 is a pair of interacting galaxies, lying 300 million light years away in the constellation Andromeda. The larger of the spiral galaxies, known as UGC1810, is about five times more massive than the smaller galaxy. Image credit: NASA/ESA & Hubble -- source link